1 Decay Scheme Co disintegrates by 100% electron capture to the excited levels of 706.42 (0.18%), and 136.47 (99.82%) in Fe. Le cobalt se désintègre à 100 % par capture électronique principalement vers les niveaux excités de 706 et 136 du fer. 2 Nuclear Data T 1/2 ( Co ) : 271,80 (5) d Q + ( Co ) : 836,0 (4) 2.1 Electron Capture Transitions Probability Nature lg ft P K P L P M 100 ɛ 0,4 129,6 (4) 0,183 (7) Allowed 7,69 0,8789 (17) 0,1035 (14) 0,0168 (6) ɛ 0,3 469,2 (4) < 0,002 2nd forbidden > 10,8 ɛ 0,2 699,5 (4) 99,82 (20) Allowed 6,45 0,8875 (16) 0,0963 (13) 0,0154 (5) ɛ 0,1 821,6 (4) < 0,003 2nd forbidden > 11,1 ɛ 0,0 836,0 (4) < 0,00035 2nd forbidden unique > 12,9 2.2 Gamma Transitions and Internal Conversion Coefficients P γ+ce Multipolarity α K α L α M α T 100 (10 3 ) γ 1,0(Fe) 14,41295 (31) 87,69 (7) M1+0,0005%E2 7,69 (16) 0,782 (16) 113 (3) 8,58 (18) γ 2,1(Fe) 122,06079 (12) 87,53 (8) M1+1,4%E2 0,0212 (5) 0,00208 (5) 0,303 (7) 0,0236 (5) γ 2,0(Fe) 136,47374 (29) 12,30 (18) E2 0,133 (3) 0,0136 (3) 1,96 (4) 0,148 (3) γ 3,2(Fe) 230,27 (3) 0,0004 (4) M1+0,04%E2 0,00374 (8) 0,000356 (8) 0,0524 (11) 0,00415 (9) KRI /V. P. Chechev, N. K. Kuzmenko 1 30/10/2001 5/4/2004
P γ+ce Multipolarity α K α L α M α T 100 (10 3 ) γ 4,3(Fe) 339,67 (3) 0,0039 (4) M1+0,7%E2 0,00149 (3) 0,000142 (3) 0,0208 (5) 0,00165 (4) γ 3,1(Fe) 352,34 (2) 0,0032 (4) M1+0,06%E2 0,00135 (3) 0,000129 (3) 0,0188 (4) 0,00150 (3) γ 3,0(Fe) 366,74 (3) 0,0013 (4) M1+17%E2 0,00160 (5) 0,000153 (5) 0,0223 (7) 0,00178 (6) γ 4,2(Fe) 569,94 (4) 0,015 (2) M1+0,94%E2 0,000458 (10) 0,0000434 (9) 0,00631 (14) 0,000508 (12) γ 4,1(Fe) 692,01 (2) 0,159 (6) M1+17,8%E2 0,000328 (10) 0,000031 (1) 0,00452 (14) 0,000364 (12) γ 4,0(Fe) 706,42 (2) 0,0050 (5) (E2) 3 Atomic Data 3.1 Fe ω K : 0,352 (4) ω L : 0,0061 (5) n KL : 1,456 (12) 3.1.1 X Radiations Relative probability K Kα 2 6,39084 50,7 Kα 1 6,40384 100 Kβ 3 7,098 } Kβ 5 7,1081 } 21,4 L Ll 0,61 Lβ 0,79 3.1.2 Auger Electrons Relative probability Auger K KLL 5,37 5,64 100 KLX 6,16 6,40 23,9 KXY 6,91 7,10 2,2 Auger L 0,6 0,7 302 KRI /V. P. Chechev, N. K. Kuzmenko 2 30/10/2001 5/4/2004
4 Electron Emissions Electrons e AL (Fe) 0,6 0,7 252 (3) e AK (Fe) 105,2 (13) KLL 5,37 5,64 } KLX 6,16 6,40 } KXY 6,91 7,10 } ec 1,0 K (Fe) 7,3009 (3) 70,4 (20) ec 1,0 L (Fe) 13,567 13,705 7,16 (20) ec 1,0 M (Fe) 14,312 14,409 1,03 (3) ec 2,1 K (Fe) 114,9486 (1) 1,81 (4) ec 2,1 L (Fe) 121,215 121,353 0,178 (4) ec 2,1 M (Fe) 121,968 122,0 0,0259 (6) ec 2,0 K (Fe) 129,3616 (3) 1,42 (4) ec 2,0 L (Fe) 135,628 135,766 0,146 (4) ec 2,0 M (Fe) 136,381 136,470 0,0210 (5) 5 Photon Emissions 5.1 XRay Emissions Photons XL (Fe) 0,61 0,79 1,55 (13) XKα 2 (Fe) 6,39084 16,8 (3) } Kα XKα 1 (Fe) 6,40384 33,2 (5) } XKβ 3 (Fe) 7,098 } XKβ 1 (Fe) } 7,1 (2) K β 1 XKβ 5 (Fe) 7,1081 } XKβ 4 (Fe) } K β 2 5.2 Gamma Emissions Photons γ 1,0 (Fe) 14,41295 (31) 9,15 (17) γ 2,1 (Fe) 122,06065 (12) 85,51 (6) γ 2,0 (Fe) 136,47356 (29) 10,71 (15) KRI /V. P. Chechev, N. K. Kuzmenko 3 30/10/2001 5/4/2004
Photons γ 3,2 (Fe) 230,27 (3) 0,0004 (4) γ 4,3 (Fe) 339,67 (3) 0,0038 (4) γ 3,1 (Fe) 352,34 (2) 0,0032 (4) γ 3,0 (Fe) 366,74 (3) 0,0013 (4) γ 4,2 (Fe) 569,94 (4) 0,015 (2) γ 4,1 (Fe) 692,01 (2) 0,159 (6) γ 4,0 (Fe) 706,42 (2) 0,0050 (5) 6 Main Production Modes { Ni 60(p,α)Co Possible impurities : Co 56, Co 58 { Ni 58(p,2p)Co Possible impurities : Co 56, Co 58 { Fe 56(d,n)Co Possible impurities : Co 56, Co 58 7 References J. M. Cork, M. K. Brice, L. C. Schmid. Phys. Rev. 99 (1955) 703 (Relative conversion electron intensities) O. C. Kistner, A. W. Sunyar. Phys. Rev. 139 (1965) B295 (Experimental ICC, gamma ray energies and relative emission probabilities) J. M. Mathiesen, J. P. Hurley. Nucl. Phys. 72 (1965) 475 G. Moreau, G. Ambrosino. Compte Rend. Ac. Sci. (Paris) 261 (1965) 5438 (Experimental ICC) S. C. Anspach, L. M. Cavallo, S. B. Garfinkel, J. M. R. Hutchinson, C. N. Smith. Report NP 15663 (1965) E. H. Spejewski. Nucl. Phys. 82 (1966) 481 (Experimental ICC and gamma ray energies) J. A. Bearden. Rev. Mod. Phys. 39 (1967) 78 (Xray energies) D. C. Hall, R. G. Albridge. Nucl. Phys. A91 (1967) 495 (Experimental ICC) W. Rubinson, K. P. Gopinathan. Phys. Rev. 170 (1968) 969 (Experimental ICC, PK and PXK values) H. E. Bosch, M. A. Fariolli, N. Martin, M. C. Simon. Nucl. Instrum. Methods 73 (1969) 323 (Experimental PK values) D. P. Johnson. Phys. Rev. B1 (1970) 3551 (Experimental ICC) R. C. Greenwood, R. G. Helmer, R. J. Gehrke. Nucl. Instrum. Methods 77 (1970) 141 F. T. Porter, M. S. Freedman. Phys. Rev. C3 (1971) 2285 (Relative conversion electron intensities) KRI /V. P. Chechev, N. K. Kuzmenko 4 30/10/2001 5/4/2004
J. Konijn, E. W. A. Lingeman. Nucl. Instrum. Methods 94 (1971) 389 (Gamma ray energies and emission probabilities) R. A. Fox, W. D. Hamilton, M. J. Holmes. Phys. Rev. C5 (1972) 853 U. Heim, O. W. B. Schult. Z. Naturforsch 27a (1972) 1861 (14,4 gamma ray energy) K. S. Krane, W. A. Steyert. Phys. Rev. C6 (1972) 2268 F. Lagoutine, J. Legrand, C. Perrot, J. P. Brethon, J. Morel. Int. J. Appl. Radiat. Isotop. 23 (1972) 219 A. Mukerji, Lee Chin. Proc. of the Intern. Conf. on InnerShell Ioniz. Phenom. and Future Appl. Apr.1722, 1972 (1973) (Experimental PK and PXK values) E. Schoeters, R. E. Silverans, L. Vanneste. Z. Physik 260 (1973) 337 R. L. Heath. Report ANCR10002 (1974) K. G. Tirsell, L. G. Multhauf, S. Raman. Phys. Rev. C10 (1974) 785 E. J. Cohen, A. J. Becker, N. K. Cheung, H. E. Henrikson. Hyperfine Interact. 1 (1975) 193 G. I. Borchert. Z. Naturforsch 31a (1976) 387 I. M. Band, M. B. Trzhaskovskaya, M. A. Listengarten. At. Data Nuc. Data Tables 18 (1976) 433 (Theoretical ICC) F. P. Larkins. At. Data Nuc. Data Tables 20 (1977) 311 (Auger electron emission) C. Vylov. Preprint JINR R610416, Dubna, 1977 (1978) (Experimental PXK and P(g14,4 ) values) K. S. Krane. At. Data Nuc. Data Tables 22 (1978) 269 H. Houtermans, O. Milosevic, F. Reichel. Int. J. Appl. Radiat. Isotop. 31 (1980) 153 U. Schötzig, K. Debertin, K. F. Walz. Nucl. Instrum. Methods 169 (1980) 43 R. Vennink, J. Kopecky, P. M. Endt, P. W. M. Glaudemans. Nucl. Phys. A344 (1980) 421 R. Vaninbroukx, G. Grosse, W. Zehner. Int. J. Appl. Radiat. Isotop. 32 (1981) 589 A. Grutter. Int. J. Appl. Radiat. Isotop. 33 (1982) 533 K. F. Walz, K. Debertin, H. Schrader. Int. J. Appl. Radiat. Isotop. 34 (1983) 1191 H. H. Hansen. European App. Res. Rept. Nucl. Sci. Technol. 6,4 (1985) 777 (Compilation of experimental ICC) K. Debertin, U. Schötzig. informal IAEA CRP paper GS/55 (1989) (quoted in IAEATecDoc619 (1991), exp. KX and g1,0 (14,4 ) abs. emis.prob.) A. L. Nichols. Nucl. Instrum. Methods A286 (1990) 467 K. Singh, T. S. Gill, K. Singh. Appl. Rad. Isotopes 41 (1990) 333 (Experimental PK values) U. Schötzig, H. Schrader, K. Debertin. Proc. Int. Conf. Nucl. Data for Sci. and Techn.,Julich, Germany (1992) 562 (Experimental Pg(14,4 ) value) D. Arnold, G. Ulm. Nucl. Instrum. Methods A339 (1994) 43 (Experimental Ka absolute emission probability) G. Audi, A. H. Wapstra. Nucl. Phys. A595 (1995) 409 (Q value) KRI /V. P. Chechev, N. K. Kuzmenko 5 30/10/2001 5/4/2004
R. Ya. Metskhvarishvili, Z. N. Miminoshvili, M. A. Elizbarashvili, L. V. Nekrasova, I. R. Metskhvarishvili, N. G. Khazaradze, N. M. Marchilashvili, I. V. Zhorzholiani. Phys. Atomic Nuclei 59 (1996) 737 (Relative conversion electron intensities and experimental ICC) E. Schönfeld, H. Janssen. Nucl. Instrum. Methods A369 (1996) 527 (Atomic data) M.C. Lépy, M.M. Bé, J. Plagnard. CAARI 96 Conference proceedings AIP Press (1997) 1067 (Experimental Kb/Ka.) R. H. Martin, K. I. W. Burns, J. G. V. Taylor. Nucl. Instrum. Methods A390 (1997) 267 A. Kovalik, M. Rysavy, V. M. Gorozhankin, Ts. Vylov, D. V. Filosofov, M. A. Mahmoud, A. Minkova, N. Coursol, P. Cassette, Ch. Briancon. Proc. 47th Ann. Conf. on Nucl. Spectr. Struct. At. Nuclei, Obninsk (1997) 277 (Relative low energy electron emission probabilities) M. M. Bé, M.C. Lépy, J. Plagnard, B. Duchemin. Appl. Rad. Isotopes 49 (1998) 1367 (Experimental Kb/Ka) M. R. Bhat. Nucl. Data Sheets 85 (1998) 415 E. Schönfeld. Appl. Rad. Isot. 49 (1998) 1353 (Fractional electron capture probabilities PK, PL, PM) R. G. Helmer, C.van der Leun. Nucl. Instrum. Methods A450 (2000) 35 V. P. Chechev, A. G. Egorov. Appl. Rad. Isotopes 52 (2000) 601 (Evaluation technique) KRI /V. P. Chechev, N. K. Kuzmenko 6 30/10/2001 5/4/2004
BNM LNHB/CEA Table de Radionucléides Co 27 30 γ Emission probabilities per 100 disintegrations 0 ε Co 27 30 7/2 ; 0 271,80 (5) d 4 3 8 5 9 5 0,00 0,01 0,15 0,00 5/2 ; 706,42 0,183 3 0 4 3 2 1 3 0,00 0,00 0,00 3/2 ; 366,74 0,002 8,8 ns 2 1 1 8 5,5 1 0,7 5/2 ; 136,47374 99,82 98,0 ns Stable 1 0 9,15 Fe 26 31 + Q = 836 % ε = 100 3/2 ; 14,41295 1/2 ; 0 0,003 0,00035 KRI \ V. P. Chechev, N. K. Kuzmenko Page number : 1/1 30/10/2001 30/10/2001